From: Joerg Roedel <joerg.roedel@amd.com>
Date: Fri, 20 Nov 2009 15:48:58 +0000 (+0100)
Subject: x86/amd-iommu: Reimplement amd_iommu_flush_all_domains()
X-Git-Tag: firefly_0821_release~9833^2~3989^2~26
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=e3306664eb307ae4cc93211cd9f12d0dbd49de65;p=firefly-linux-kernel-4.4.55.git

x86/amd-iommu: Reimplement amd_iommu_flush_all_domains()

This patch reimplementes the amd_iommu_flush_all_domains
function to use the global protection domain list instead
of flushing every domain on every IOMMU.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
---

diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index 0c4319b13014..5141f5608c5c 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -530,10 +530,12 @@ static void flush_all_domains_on_iommu(struct amd_iommu *iommu)
 
 void amd_iommu_flush_all_domains(void)
 {
-	struct amd_iommu *iommu;
+	struct protection_domain *domain;
 
-	for_each_iommu(iommu)
-		flush_all_domains_on_iommu(iommu);
+	list_for_each_entry(domain, &amd_iommu_pd_list, list) {
+		iommu_flush_tlb_pde(domain);
+		iommu_flush_complete(domain);
+	}
 }
 
 static void flush_all_devices_for_iommu(struct amd_iommu *iommu)